It is usually possible to eat blueberries at night, but they need to be eaten in moderation. Blueberries are daily nutritious fruits, in which every 100 grams contains 57 kcal energy, 14.49 grams of carbohydrates and 77 mg of potassium and other nutrients, belonging to the higher carbohydrate fruit. Moderate consumption at night can supplement the human body needs a variety of nutrients and energy, so you can eat blueberries at night. Although you can eat blueberries at night, but it is not recommended to eat before going to bed, to avoid aggravating the burden on the stomach and intestines. Diabetic patients should eat less blueberries, so as not to cause an increase in blood sugar. Although blueberries have high nutritional value, but do not overdose, so as not to cause gastrointestinal discomfort, such as bloating, abdominal pain and other symptoms.